<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<table border="1">
    <tr>
        <td>主机名</td>
        <td>端口</td>
        <td>操作</td>
    </tr>
    <tr>
        <td>1.1.1.1</td>
        <td>80</td>
        <td>
            <a href="s2.html">查看详细</a>
            <a href="#">修改</a>
        </td>
    </tr>
    <tr>
        <td>1.1.1.1</td>
        <td>80</td>
        <td>第二行，第3列</td>
    </tr>
</table>

<table border="1">
    <thead>
        <tr>
            <th>表头1</th>
            <th>表头1</th>
            <th>表头1</th>
            <th>表头1</th>
        </tr>
    </thead>
    <tbody>
        <tr>
            <td>1</td>
            <td colspan="3">1</td>
        </tr>
        <tr>
            <td rowspan="2">1</td>
            <td>1</td>
            <td>1</td>
            <td>1</td>
        </tr>
        <tr>
            <td>1</td>
            <td>1</td>
            <td>1</td>
        </tr>
        <tr>
            <td>1</td>
            <td>1</td>
            <td>1</td>
            <td>1</td>
        </tr>
    </tbody>
</table>

</body>
</html>